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Method and apparatus for synchronizing base stations

  • US 7,813,311 B2
  • Filed: 12/18/2002
  • Issued: 10/12/2010
  • Est. Priority Date: 02/05/2002
  • Status: Expired due to Fees
First Claim
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1. A method for time synchronizing a plurality of base stations in a wireless communication system, comprising:

  • detecting at least one of a plurality of out-of-sync base stations;

    measuring a plurality of cell timing signals, wherein the measuring includes sending a request for a base station time of arrival (BSTOA) value to at least one of the out-of-sync base stations, and transmitting the BSTOA value;

    correcting the at least one of a plurality of out-of-sync base stations, whereinthe correcting includes;

    comparing the BSTOA value with a stored BSTOA value;

    generating a correction message;

    transmitting the correction message to the out-of-sync base station;

    receiving a report from the out-of-sync base station; and

    updating a covariant matrix database;

    maintaining the covariant matrix database on a radio network controller (RNC);

    wherein at least one out-of-sync base station or at least one user equipment (UE) is under control of at least two different RNCs, and;

    establishing a communications path between the at least two different RNCs; and

    performing base station synchronizing.

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